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Welch Dry Vacuum Pumps 2511B-75 WOB-L .39 cfm NEW IPH

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SKU: 40.44191.01

Additional information

Weight 20 lbs
New / Rebuilt

Level of Vacuum

CFM / L/M (Displacement)

Inlet / Exhaust


Power Options


As a Welch distributor, we are proud to offer their full line of PTFE oil-free laboratory vacuum pumps for chemical duty to pump acid vapors and corrosive gases as well as economical standard lab duty pumps in a range of sizes and vacuum levels for pumping water vapor and non-corrosive gases. The GELMASTER® and SELF-CLEANING DRY VACUUM SYSTEMS are fully configured for gel drying, and for rotary evaporation and other applications. Finally, Welch dry rotary vane pumps are an economical solution for pumping dry air.

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Welch Dry Vacuum Pumps 2511B-75 WOB-L .39 cfm NEW IPH Specifications

 Aspiration/Filtration Systems
Free Air Displacement 
CFM (L/min) @ 60Hz0.39(11)
m3/hr (L/min) @ 50Hz0.55(9.2)
Ultimate Pressure, Torr (mbar)219(292)
Max Pressure PSIG (pascal)33(3.3 x 105)
Maximum Vacuum, in. Hg21.3
Motor Horsepower (watts)1/30(25)
Tubing Needed, I.D. in. (mm)3/16(5)
Intake/Exhaust Thread NPT3/16 in. Hose
Weight (lbs.)5.7
Overall Dimensions 
L in. (cm)11.0(28)
W in. (cm)8.3(21)
H in. (cm)10.0(25.5)
Ship Weight, lbs (kg)11.0(5)
Shipping Carton Dimensions21.5 x 12.5 x 16
L x W x H in. (cm)(55 x 32 x 41)

Click Below for Specification Sheet

Welch Oil-free Pumps